AWR1642: Frame start time stamp information

Hi,

In AWR1642,How we Will get the values of following structure :

typedef struct DPC_ObjectDetection_Stats_t
{
    /*! @brief   interChirpProcess margin in CPU cyctes */
    uint32_t      interChirpProcessingMargin;

    /*! @brief   Counter which tracks the number of frame start interrupt */
    uint32_t      frameStartIntCounter;

    /*! @brief   Frame start CPU time stamp */
    uint32_t      frameStartTimeStamp;

    /*! @brief   Inter-frame start CPU time stamp */
    uint32_t      interFrameStartTimeStamp;

    /*! @brief   Inter-frame end CPU time stamp */
    uint32_t      interFrameEndTimeStamp;

    /*! @brief Sub frame preparation cycles. Note when this is reported as part of
     *         the process result reporting, then it indicates the cycles that took
     *         place in the previous sub-frame/frame for preparing to switch to
     *         the sub-frame that is being reported because switching happens
     *         in the processing of DPC_OBJDET_IOCTL__DYNAMIC_EXECUTE_RESULT_EXPORTED,
     *         which is after the DPC process. */
    uint32_t      subFramePreparationCycles;
} DPC_ObjectDetection_Stats;

the above values how we will get from DSS whether it is seconds or milliseconds,we need full clarity how we are getting the values to above structure

Can u please explain in clarity on timestamps

Thanks

Akhil.

Hi,

These values are measured by using the TSC (Time Stamp Counter) register. It is a register that simply counts the cycle.

Please check the code for the use to get above values

thank you

Cesar